Implement SEP-990 Enterprise Managed OAuth #830

Job	Run time
checks / readme-snippets	11s
checks / pre-commit	32s
checks / test (3.11, lowest-direct, windows-latest)	2m 29s
checks / test (3.10, locked, ubuntu-latest)	55s
checks / test (3.11, lowest-direct, ubuntu-latest)	55s
checks / test (3.10, lowest-direct, ubuntu-latest)	55s
checks / test (3.10, lowest-direct, windows-latest)	2m 8s
checks / test (3.10, locked, windows-latest)	2m 9s
checks / test (3.11, locked, windows-latest)	2m 21s
checks / test (3.11, locked, ubuntu-latest)	50s
checks / test (3.13, locked, ubuntu-latest)	50s
checks / test (3.12, lowest-direct, windows-latest)	3m 21s
checks / test (3.12, lowest-direct, ubuntu-latest)	55s
checks / test (3.13, locked, windows-latest)	2m 24s
checks / test (3.13, lowest-direct, windows-latest)	2m 33s
checks / test (3.13, lowest-direct, ubuntu-latest)	53s
checks / test (3.12, locked, windows-latest)	3m 28s
checks / test (3.12, locked, ubuntu-latest)	57s
checks / test (3.14, locked, ubuntu-latest)	2m 18s
checks / test (3.14, lowest-direct, windows-latest)	2m 16s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.14, locked, windows-latest)	4m 4s
all-green	4s
	38m 42s

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